Encountered curious AI behaviour during a base defense.
Two Merc Captains and a Commando who literally would not move an inch, no matter how many turns passed (including after turn 20). The Commando was on the top right structure. The Merc Captains were on the third floor catwalk to the middle right, and bottom right respectively.
Two Commandos who paced back and forth constantly between two points (one was in the Access Lift (bottom left corner), the other was in the Hangar (3rd floor, bottom left corner).